Separator



@No Modem G. W. GROSS.

SEPARATOR.

No. 570,460, Patented Nov. 3, 1896.

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UNITED STATES PATENT OEEICE.

GEORGE V. CROSS, OF PITTSTON, PENNSYLVANIA.

SEPARATO R.

SPECIFICATION forming part of Letters Patent No. 570,460, dated November 3, 1896,.

` Applicatoniiled March 12, 1896.

.To a/ZZ whom it 11W/ty concern.-

Beit known that I, GEORGE W. Cnoss, a citizen of the United States, residing at Pittston, in the county of Luzerne and State of Pennsylvania, have invented a certain new and `useful Improvement in separators, of which the following is a specification.

E The invention concerns mechanism for separating various materials, suchv as coal, ore, stone, rbc., into various qualities or grades.

Hi It relates particularly to that type of separators in which water is employed, the saine being passed through the apparatus under pressure. "i

The object is to provide a durable and eflicient device in which the separating operation may be carried on continuously, the different grades or qualities being removed independently. A

The invention is designed particularly for use in the separation of slate from coal. This has heretofore been accomplished with the aid of Water, which so acts upon the co1nposite material as to ,separate the slate and coal to some extent. These separators have been found unreliable, the coal being passed therefrom with a considerable admiXture of slate, which in the present invention is avoided.

In carrying out my invention l employ a box or case supplied with Water under pressure. y Vithin this box or case are located screens or perforate Ways through which the Water passes freely. The combined coal and slate fed upon these screens is separated by the action of the water, both being passed out f of the separator continuously and independently. I have found that by the use of this apparatus no coal is wasted by being passed out of the separator with the slate, and, on the other hand, the quality of the coal from which all slate has been removed is considerably higher.

In the drawings, Figure l is a top view of the improved separator, a portion of the hopper through which the coal is fed being, for clearness of illustration, removed; and Fig.

2 is a vertical longitudinal section on the line 22, Fig. 1.

Referring to said drawings, A designates the box or case of the separator, which, in the present instance, is rectangular in form and which may be constructed of any desired ma- `means of the partitions a a.

Serial No. 582,878. (No model.)

a valve or valves (not shown) to permit access of water through the plunger to the interior of the separator and at the same time prevent its egress through said plunger. By suitable power connections the plunger B is given vertical movement, so as to force the water through the separator by intermittent pressure.

C designates an inclined pcrforate way or `screen, the upper imperforate end c of which is, in the present instance, supported by lt may, if desired, have additional supports in the sides co2 of the case. The lower end of the screen,

`which may be supported upon the end d3 of thecase, is depressed at c and is provided with the imperforate portions c;2 c3, the purpose of which will be hereinafter described.

D designates the hopper throughlwhich `coal is introduced, and, as here shown, l pre- `fer to combine with this an inclined chute D,

adapted to receive the coal and to convey the saine from the separator to a suitable receptacle. The chute D may be perforated at'd to drain the coal as it passes over such perforated portion.

E designates a guidepartition suitably supported and having its upper end located adjacent to the edge of the chute D.

F designates a partition supported by the sides a2 of the case and perforated throughout the whole or a part of its length. F

designates aniimperforate partition, which` may be also supported by the sides a2, and which, with the end d3, forms a passage for slate. By making this partition with perforations, as explained, the water may passy through the same and form a current between said partition F and the imperforate partition F'. By this means the composite material will be more fully separated, as will be explained. This partition F also serves to direct the flow of coal that may take place between the same and the imperforate parti- IOO tion F, whereby the coal will be maintained in that portion of the water at that locality where the iiow is strongest. lVere it not for this partition any coal which might be carried up from the lower end of the partition C might be affected by any currents which might form between the partitions E and 1W, so as not to be carried out through the discharge.

In operation the composite material fed through the hopper D falls upon the imperforate portion cof the screen C and passes downward upon said screen. The Water which permeates the mass separates, by the intermittent pressure, the coal from the slate, the former being passed along the upper side of the partition E and thence into the chute DQ the slate sliding downwardly on the screen. Should there remain in this slate any admiX- ture of coal, a further separation takes place when the mass reaches the imperforate portion c2, the remaining particles of coal passing up to the right of the perforate partition F (the separating process continuing through such passage, being assisted by the water flowing through said partition and the slate falling to the bottom) and thence to the coal,- chute D', the slate passing on into the depression c. The flow of water that passes through the perforate partition extends toward the lower end of the second partition, turns sharply, and passes immediately to the discharge. A partv of this flow is downward in the direction of the movement of the ma-A terial, so that the water first passes through the material, so as to bring the coal to the top,l and then drives the coal toward the lower end of the second partition, around whichv it moves, and then passes immediately to the discharge. That portion of the flow which passes through the inclined partition below the lower end of the second partition passes almost in a straight line toward the discharge, so as to assist in carrying the coal around the lower end of the second partition. The slate accumulating in this depression is, by the pressure of the water, passed upward between the end a3 of the case and the imper-V forate partition F and out of the separator by way of the inclined apron G, by means of which the slate may be guided to a suitable receptacle. The apron Gr may be perforated at g, so as to drain the slate, the water passing therefrom through the gutter g and pipe g2. If desired, the end a3 of the ease may be provided with the gate a4, having vertical adj ustment.

Should the waterfpressure through the perforations in the depression c become too great, the same may be reduced by means of the hinged adjustable leaf cl. Thus, as will be seen, from the time the mixed coal and slate is fed into the hopper until it passes out in the chute the separating operation is being continuously carried on.

l. In a separator, the combination with a receptacle, a source of water supply communicating with the interior thereof, means for passing the water through the receptacle under pressure, an inclined perforate way in said receptacle, means for feeding upon the upper part of said way the material to be treated, a guide-partition located in said receptacle above said inclined way and inclined in substantially the same general direction, a discharge at the upper end of said guidepartition for receiving a part of the material separated, and another discharge from said receptacle for the remainder of the material separated, substantially as set forth.

2. In a separator, the combination with a receptacle, of a source of water supply communicating with the interior thereof, means for passing the water through the receptacle under pressure, an inclined perforate way in said receptacle means for feeding upon the upper end of said perforate way the material to be treated, a guide-partition in said receptacle above said perforate wayand inclined in substantially the same general direction, a chute at the upper end of said guide-partition for receiving a part of the material separated, and a discharge from said receptacle for the remainder of the material separated, substantially as set forth.

3. In a separator, the combination with a receptacle, of a source of water supply communicating with the interior thereof, means for passing the water through the receptacle under pressure, an inclined perforate way in said receptacle, a guide-partition in said receptacle above said perforate way and in-v clined in substantially the same general direction, a chute at the upper end of said guide-.partition for receiving a part of the material separated, and an approximately vertical imperforate partition. arranged in said receptacle, with its lower end adjacent to the lower end of said per-forate way and between which and the end of the receptacle is formed a passage for the discharge of the re mainder of the material separated, substantially as set forth.

4c. In a separator, the combination with a receptacle, of a source of water supply com-Y municating with the interior thereof, means for passing the water through the receptacle under pressure, an inclined perforate way above said receptacle, a guide-partition in said receptacle above said perforate way and inclined in substantially the same general direction, a chute at the upper end of said guidepa'rtition for receiving a part of the material separated, an imperforate partition in said receptacle forming between the same and the end of the receptacle a passage for the dis charge of the material separated, and a perforate partition in said receptacle located between said guidespartition and the imperforate partition, substantially as set forth.

5. In a separator, the combination with a IOO IIO

receptacle, of a source of Water supply communicating with the interior thereof, means for passing the water through the receptacle under pressure, an inclined perforate Way in said receptacle, a guide-partition in said receptacle above said perforate way and inclined in substantially the same general direction, a chute at the upper end of said guidepartition for receiving a part of the material separated, an imperforate partition in said receptacle between which and the end of the receptacle is formed a passage for the discharge of the material separated, and a perforate pocket in the lower end of said perforate way in which the heavier material accumulates before being discharged through said passage, substantially as set forth.

6. In a separator, the combination with a receptacle, of a source of water supply communicating with the interior thereof, means p for passing the water through the receptacle under pressure, an inclined perforate way in said receptacle, a guide-partition in said receptacle above said perforate way and inclined in substantially the same general direction, a chute at the upper end of said guidepartition for receiving a part of the material separated, an imperforate partition in said receptacle between which and the end of the receptacle is formed a passage for the discharge of the material separated, a perforate pocket in the lower end of said perforate way in which the heavier material accumulates be fore being discharged through said passage, and means for varying the discharge through said perforate pocket, substantially as set forth.

7. In a separator, the combination with a receptacle, of a source of water supply communicating with the interior thereof, means for passing the water through the receptacle under pressure, an inclined perforate way in said receptacle, a guide-partition above said perforate way and inclined in substantially the same general direction, a chute at the upper end of said guide-partition for receiving a part of the material separated, and drainage-openings in said chute for draining the material discharged into the same, substantially as set forth.

8. In a separator, the combination with a receptacle, of a source of Water supply communicating with the interior thereof, means for passing the Water through the receptacle under pressure, an inclined perforate Way in said receptacle, a guide-partition in said receptacle above said perforate way and inclined in substantially the same general direction, means at the upper end of said guidepartition for receiving a part of the material separated, a discharge-chute for receiving the remainder of the material separated, and means for draining the material discharged through said chute, substantially as set forth.

This speciication signed and witnessed this 28th day of February, 1896.

GEORGE W. CROSS.

Witnesses z J. O. EnMoNDs, EUGENE CONRAN. 

